Gas manufacture



Nov. 2 1926.

S. R. TYMSTRA ET AL GAS MANUFACTURE Filed March 2. 1925 5 Sheets-Sheet 1Y g I 2 ATTORNEY Nov. 2., 1926,. 1,605,083

, S. R. TYMSTRA ET AL GAS MANUFACTURE Filed March .2. .1925 3Sheets-Sheet 2 *5 9 JZYE TQ ATTORNEY Nov. 2 1926. 1,605,083

5. R. TYMSTRA ET AL GAS MANUFACTURE 7 Filed March 2. 1925 3 Sheets-Sheet5 a/ I a;

ATTORNEY Patented Nov. 2, 1926.

smear: a. mms'rm am) omv 'rwiirr,

arsurorrlcs.

OF DETROIT, IICHIGAI T, ASSIGNOBB T STEERE ENGINEERING: CQHPANY, 01!"DETROIT, I IICHIGAN A COBIORATION OF irrcnrem.

ens murac'runs.

ap lication filed lurch 2, 925. Serial m. 12,539.

Our invention has particular reference to means for opening and closing,valves and caps, such. as are ordinarily gas making plants. Valves andcaps of'this nature are in themselves large and heavy so as to requireconsiderable force to be exerted uponth'em for opening and closing them,and the force or pressure oftentimes applied against them by the ases inthe plant when they are closed ad materially to the final forcenecessary to be applied in the normal operation'of the same.Furthermore, it is necessary that these heavy and cumbersome valves andcaps be brou ht to their seats witha cushioned effect in 'stinction to aclash or heavy impact, which would tend to disintegrate them or portionsof the plant.

It is, therefore, the rimary object of our invention to provie simple,positive and easily controlled means for operating such devices. In theworking out of this primary object, we utilize a hydraulically operatedpiston, to which is connected by 26 means of a rack and sector gear atoggle arrangement of levers adapted, upon movement of the piston, togive acceleration to the valve or cap with a deceleration of power uponthe first movement of the piston and a deceleration of movement with anacceleration of power upon the final movement of the iston with theresulting efiect of bringing e valve or cap to its seat under greatpower but-with a slow and cushioning movement. 7

Other and further-objects of our invention will be apparent from thedetailed description following in conjunction with the accompanyingdrawings, in which:

Fig. 1 is a side elevation of a gas plant embodying our invention.

Fig. 2 is a plan view of a gas plant showour invention secured thereto.7

ig. 3 is a plan view of our improved device, shown partly in section.

I Fig. 4 is a sectional viewof our improved device taken on line 4"-4 ofFig. ,3.

Fig. 5 is a side elevation showing our improved device as gas plants.

Fig. 6 is a plan view showin proved device as applied to caps.

our imgas p ant stack employed in 7 applied to stack caps for We haveshown a gas plant consisting of a generator 5; acarburetor 6, asuperheater and-a wash-box 8. The customary fuel opening 9 for thegenerator and the oil spray opening 10 for the carburetor are shown moreor less diagrammatically inas-' much as they form no part of ourinvention.

Suitable connections for the various elements areprovided as in theconduit 12 leading from the generator to the carburetor, the conduit 13leading from the carburetor to the superheater and the off-take conduit14 leading from the superheater through the valve. housing 15 into thewash.- box 8. A gas off-take passage 16 leads from the wash-box '8 tothe gas container and a passage 17 leads from the housing 15 through thepassage 18 into the'bottom of the generator.

Positioned on the housing 15 is the cylinder 19 within which ispositioned a conventional pistcgn adapted to be reciprocated byhydraulic power introduced through the conduits 96. -The hydraulicpressure applied maybe governed in various manners, but we have provideda simple control which consists in placing adisc 97 within the conduitshaving an orifice 98 therein of suitable size to limit the velocity,according to the particular requirements. The piston has a piston shaft20 that has'the rack 21 with the teeth 22 secured thereto by means ofthe brackets 23 and the bolts 24. A guide wa 25 is provided for the rack21 on the cylin er 19. The sector gear 26 with the end 27 is pivoted on'a bearing 28 ,by the pin 29 so that the gear teeth 30 mesh with theteeth 22; The bearing support 31 is laced on the pin 29 and secured bythe was er 32 and the cotter key 33.

A shaft 34 is fitted into' the housing 15 by means of the bearing 35',the collar 36, gland 37 and the bearing 31. One end of the shaft 34 isprovided with the lever 38 that has the slot 39 therein. The pin 40 withthe roller 41 thereon connects the end 27 of the gear 26 to the lever 38so that the roller 41 can reciprocate back and, forth in the slot 39.

An arm 42 is placed on the shaft 34. A pair of separate plates 43 and 44are loosely secured to the arm 42 by the bolt 45 that 105 has its head46 resting in the socket 47 of the plate 43 and the lock nuts 49 thatare steam entering the passage 53 to be directed.

threaded on the end of the bolt 45 in the socket 48 of the plate 44. Apin 50 prevents the bolt 45 from turning in the arm 42. Covers 51 arefitted over the sockets 47 and 48 by the nuts 52 to prevent leakage.

It will be noted that the head 46 of the bolt 45 is beveled; that thelock nuts 49 do not come in contact with the inner surface of the socket48 and that the sockets 47 and 48 are rounded where they are secured tothe arm. Thus, universal movement of at least five degrees is permittedwhen the said plates are being located on the portions of the passagesthat they close. This construction allows the plates to first find theirseats and then to become firmly fixed thereon.

The shaft 34 is so positioned in the housing 15 that when it is rotatedin one direction the plate 43 will engage the mouth of the verticalportion of the passage 17 while when the shaft is moved in the oppositedirection, the plate 44 will engage the face of the horizontal portionof the passage 14.

For the introduction of steam into the system, we utilize a passage 53which com-v municates with the passages 54 and 55, the passage 54leading into the passage 14 and the passage 55 leading into the passage17. A double acting valve is positioned at the junctures of the passages53, 54 and 55, as at 56, and the operation thereof is controlled bymeans of the lever 57 attached to the end of the rack 21, so that steammay be alternately passed into the passages 14 and 18, dependent uponmovement of the piston, and consequently the position of the valve.

The passage 58 is utilized for blasting, being connected with thegenerator '5 through the passage 18. When the blasting is discontinued,the valve 59 is closed so as to permit the use of the passage 18 forother purposes.

It will thus be seen that in making an up run, steam is passed throughthe passage 53, 55, 17 and 18 into the bottom of the generator and gasesare carried from the top of the generator through the passage 12 to thecarburetor 6, through the passage 13, into the superheater 7, throughthe olftake 14 and the housing 15 into the washbox 8. During thisoperation, the plates 44 and 43 are in such position as to close thehousing 15 to the passage 17, as shown in i Fig. 3.

In making a back run, the hydraulic cylinder 19 is operated so that therack 21 will cause the gear 26 to move in one direc tion, therebyreciprocating the pin 40 in the slot 39, and thus forcin the lever 38 toturn so as to reverse the p ates 43 and 44 and close the passage betweenthe housing 15 and the passage 14, at the same time closing, through thevalve 56, communication between the passage 53 and 55, and permittingthrough the passage 54 into the off-take 14 from whence it followsthrough the superheater 7, the passage 13, the carburetor 6, the passage12 and the generator 5, into the passage 18, and thence through thepassage 17 into the housing 15 and the wash-box 8.

Figs. 5 and 6 show our invention as applied to a gas plant stack cap,wherein we have provided the superheater 7 with a stack 99, on which ispositioned another hydraulic cylinder 60 with the piston shaft 61 thathas the rack 62 with the teeth 63 secured thereto by means of thebrackets 64 and the bolts 65. A guide-way 66 is provided for the rack 62on the cylinder 60. The sector gear 67 with the end 68 is pivoted on thebearing 69 by the pin 70 so that the gear teeth 71 may mesh with theteeth 63. A toggle bolt 74 is fitted into the end 68 of the sector gear67 by the pin 76 and the cotter keys 77.

On the stack 99 are placed the shaft supports 78, into which is fittedthe shaft 79. An arm 80,-which has the stop valve cover 83, securedthereto by means of the bolt 81 and the nut 82, is firmly fastened tothe shaft 79. The head 84 of the bolt 81 is adapted to rest in thesocket 85 of the valve cover 83 and the cover plate 86 is placed on theopen end of the socket 85 by the bolts 87.

Positioned on one end of the shaft 79 is the lever 88 that has the rod89 fitted into the end thereof by the pin 90. This rod 89 connects withthe toggle bolt 74 and is held in place by the nut 75. A s11 porting rod91 extends from the pin 70 to t e end of the shaft 79 and is made secureby the washers 73 and the cotter keys 72.

Thus, when the rack 62 is moved in one direction by the piston shaft 61,the gear 67 will also move so as to force the turning of the shaft 79 bymeans of the toggle bolt 74, the rod 89 and the lever 88. The turning ofthe shaft 7 9, forces the arm 80 to rise vthe flange seat 92 that is onthe stack 99.

To lower the valve cover 83, the piston shaft 61 is moved in theopposite direction, thereby, through the use of the tog le means formedby the gear 67, the togge pin 74, the rod 89 and the lever 88, the valveis lowered with a positive movement to its original position on thestack 99.

It will be noted that with the foregoing construction, the power exertedupon the valve disc on the stack 99 and the two-way valve disc in, thehousing 15, is first decreased in proportion to the increased speed ofthe toggle assembly that moves the same. The power then proportionatelyincreases with the decrease in moving speed of the assembly and reachesits maximum at the end meshing sudden and harshcontact of the discs withtheir seat.

' It is obvious that various changes may be made in the arrangement,combination and.

construction of the various parts of our -im proved device withoutdeparting from the spirit of ourinvention, and it is our intention tocover by our claims such changes as may be reasonably included withinthe scope thereof.

What we claim is:

1. In ncombination, a shaft, means for moving the shaft, an arm mountedon said shaft, one or more plates having a socket in the center thereof,securing means positioned in said socket and loosely fasteningsaid'plate to said arm to allow limited movement of said plate on saidsecuring means and a cover placed over said socket to pre vent leakage.

' 2. In combination, shaft supports, a shaft positioned therein, an armsecured to said shaft and one or more plates fitted to said arm, ahydraulic cylinder, a piston rod extending from both ends of saidcylinder, means for reciprocating said rod in said cylinder, a rackplaced on said piston rod, a sector gear with a lever integral therewithwith said rack and means connecting sai gear and shaft, whereby saidshaft and said plate can be partially rotated by said piston rod.

3.*l[n combinatiomshaft supports,ashaft positioned therein, an armsecured to said shaft and one or more plates fitted on said I arm, ahydraulic cylinder, a piston'rod extending from both ends of saidcylinder, means for reciprocating said rod in said cylinder, a rackplaced on said piston rod, a sector gear meshing with said rack andmeans consisting of a toggle arrangement of levers cooperating with saidgear, whereby said shaft and said plate can be partially rotated with apositive movement by said piston rod.

4. In combination, shaft supports, a shaft positioned therein, an armhaving a plate secured thereto placed on said shaft, a hydrauliccylinder, a reciprocating piston in said cylinder, a sector gear, havinga lever integral therewith, means on said piston whereby said gear canbe partially rotated back-and forth by said piston, a toggle bolt fittedonto said lever, a rod secured to said bolt and a lever positioned onsaid shaft that connects with said rod,'adapted to partially rotate saidshaft and said plate when said gear is rbtated.

' 5. In combination, shaft supports, a shaft positioned therein, ahydraulic cylinder, a piston rod extending from both ends of saidcylinder, means for reciprocating said rod in said cylinder, a rackplaced on said piston rod, a pivoted sector gear having a lever integraltherewith meshing with said rack whereby said gear can be rotated backand forth by said piston rod, a toggle bolt fitted on to saidlever, arod secured to said bolt and a lever positioned on said shaft thatconnects with said rod so that said SYBREN R. TYMSTRA. OLAV TIT.

